All categories

1 year ago

(a) Write an expression for a number that is three more than r. .

Mathematics

1 answer:

navik [9.2K]1 year ago

7 0

Answer:

r+3

Step-by-step explanation:

r is an expression. To get an expression that is 3 more, just add 3

r+3

You might be interested in

The radius of a sphere decreases at a rate of 6 m/sec. find the rate at which the surface area decreases when the radius is 20 m

DanielleElmas [232]

The radius of the sphere decreases at the rate of 6 m/ sec

That is, $\frac{dr}{dt}=-6$

Surface Area of the sphere of radius r is given by $S=4\pi r^2$

Differentiating with respect to t,

$\frac{dS}{dt}=4\pi (2r)\frac{dr}{dt}=8\pi r\frac{dr}{dt}$

$\frac{dS}{dt}=8\pi (20)^2(-6)=-960\pi \: m^2/sec$

8 0

3 years ago

A quadilateral ABCD is drawn to circumcribe a circle . prove that AB+CD=AD+BC

lora16 [44]

Answer:

Helllllp

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Untitled Section

miskamm [114]

Answer:

the answer is 8 7/8

Step-by-step explanation:

7 0

2 years ago

Type your answer and then click or tap Done.<br> Simplify -(x-2y) - y.

AlladinOne [14]

Answer:

Step-by-step explanation:

x(x-2y)-(y-x)2

Final result :

-y2

Step by step solution :

Step 1 :

Equation at the end of step 1 :

x • (x - 2y) - (y - x)2

Step 2 :

2.1 Evaluate : (y-x)2 = y2-2xy+x2

Final result :

-y2

4 0

2 years ago

Read 2 more answers

In the previous lesson, you created SMART goals for yourself to extend from the start of the semester to the end of the semester

Aleks [24]

Answer:

Improve your growth attitude, be more proactive, learn to understand yourself, be persistent despite hurdles, learn to accept your limits, learn how to make successful decisions, practice thankfulness, and stay open-minded to new opportunities are some of the ways that SMART goals can assist you.

Step-by-step explanation:

I've done this before :)

8 0

2 years ago

Read 2 more answers